Hi,
Yes, I would take in both.
Remember it is often a good idea ot get a culture done to determine which anti-biotic will work best against the specific cause.
The vet will normally start a course when first seeing the animals and then change it if the tests show another would work better - but once a course has been started it's too late to take a culture.
It does cost a little extra but has the best chance of helping the animal and is probably cheaper than 3 courses of non effective anti-biotics.
But ask the vet for prices etc first.
dr del